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// Copyright 2019 Google LLC All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package remote
import (
"fmt"
"net/http/httptest"
"net/url"
"testing"
"github.com/google/go-containerregistry/internal/compare"
"github.com/google/go-containerregistry/pkg/name"
"github.com/google/go-containerregistry/pkg/registry"
"github.com/google/go-containerregistry/pkg/v1/empty"
"github.com/google/go-containerregistry/pkg/v1/mutate"
"github.com/google/go-containerregistry/pkg/v1/partial"
"github.com/google/go-containerregistry/pkg/v1/random"
"github.com/google/go-containerregistry/pkg/v1/types"
"github.com/google/go-containerregistry/pkg/v1/validate"
)
func TestRemoteLayer(t *testing.T) {
layer, err := random.Layer(1024, types.DockerLayer)
if err != nil {
t.Fatal(err)
}
digest, err := layer.Digest()
if err != nil {
t.Fatal(err)
}
// Set up a fake registry and write what we pulled to it.
// This ensures we get coverage for the remoteLayer.MediaType path.
s := httptest.NewServer(registry.New())
defer s.Close()
t.Log(s.URL)
u, err := url.Parse(s.URL)
if err != nil {
t.Fatal(err)
}
t.Log(u)
dst := fmt.Sprintf("%s/some/path@%s", u.Host, digest)
t.Log(dst)
ref, err := name.NewDigest(dst)
if err != nil {
t.Fatal(err)
}
t.Log(ref)
if err := WriteLayer(ref.Context(), layer); err != nil {
t.Fatalf("failed to WriteLayer: %v", err)
}
got, err := Layer(ref)
if err != nil {
t.Fatal(err)
}
if _, err := got.MediaType(); err != nil {
t.Errorf("reading MediaType: %v", err)
}
if err := compare.Layers(got, layer); err != nil {
t.Errorf("compare.Layers: %v", err)
}
if err := validate.Layer(got); err != nil {
t.Errorf("validate.Layer: %v", err)
}
if ok, err := partial.Exists(got); err != nil {
t.Fatal(err)
} else if got, want := ok, true; got != want {
t.Errorf("Exists() = %t != %t", got, want)
}
}
func TestRemoteLayerDescriptor(t *testing.T) {
layer, err := random.Layer(1024, types.DockerLayer)
if err != nil {
t.Fatal(err)
}
image, err := mutate.Append(empty.Image, mutate.Addendum{
Layer: layer,
URLs: []string{"example.com"},
})
if err != nil {
t.Fatal(err)
}
// Set up a fake registry and write what we pulled to it.
// This ensures we get coverage for the remoteLayer.MediaType path.
s := httptest.NewServer(registry.New())
defer s.Close()
u, err := url.Parse(s.URL)
if err != nil {
t.Fatal(err)
}
dst := fmt.Sprintf("%s/some/path:tag", u.Host)
ref, err := name.ParseReference(dst)
if err != nil {
t.Fatal(err)
}
if err := Write(ref, image); err != nil {
t.Fatalf("failed to WriteLayer: %v", err)
}
pulled, err := Image(ref)
if err != nil {
t.Fatal(err)
}
layers, err := pulled.Layers()
if err != nil {
t.Fatal(err)
}
desc, err := partial.Descriptor(layers[0])
if err != nil {
t.Fatal(err)
}
if len(desc.URLs) != 1 {
t.Fatalf("expected url for layer[0]")
}
if got, want := desc.URLs[0], "example.com"; got != want {
t.Errorf("layer[0].urls[0] = %s != %s", got, want)
}
if ok, err := partial.Exists(layers[0]); err != nil {
t.Fatal(err)
} else if got, want := ok, true; got != want {
t.Errorf("Exists() = %t != %t", got, want)
}
}
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